NSN 5999-01-157-4707 · NIIN 011574707 · Part number 721435-1
Raytheon Company Div Rmd Strategic · FSC 5999 — Miscellaneous Electrical and Electronic Components · FSG 59 — Electrical and Electronic Equipment Components · CAGE 05869
Government record, cited
NSN 5999-01-157-4707 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-157-4707. Manufacturer of record part number: 721435-1.
Also searched as5999-01-157-4707 ·
5999011574707 ·
NIIN 011574707 ·
01-157-4707 ·
FSC 5999 Miscellaneous Electrical and Electronic Components · CAGE 05869 · 721435-1 · 3-841-006
Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Surface Treatment Document and Classification: MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE
Unthreaded Mounting Hole Diameter: 0.220 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Surface Treatment: CHROMATE
Material: ALUMINUM ALLOY
2 manufacturer part numbers on file
Manufacturer of record: Raytheon Company Div Rmd Strategic
Identification
NSN: 5999-01-157-4707
NIIN: 011574707
FSC: 5999 — Miscellaneous Electrical and Electronic Components
FSG: 59 — Electrical and Electronic Equipment Components
Primary part number: 721435-1
Manufacturer: Raytheon Company Div Rmd Strategic
General Description
The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-157-4707, is classified within Federal Supply Class 5999 (Miscellaneous Electrical and Electronic Components) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Raytheon Company Div Rmd Strategic. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active. Unit of issue: EA.
Technical Specifications
Parameter
Value
NSN
5999-01-157-4707
Primary Part Number
721435-1
Item Name
Heat Sink,electrical-Electronic
FSC / FSG
5999 / 59 — Miscellaneous Electrical and Electronic Components
Manufacturer
Raytheon Company Div Rmd Strategic
Status
ACTIVE
Mounting Facility Type and Quantity
4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Surface Treatment Document and Classification
MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE
Unthreaded Mounting Hole Diameter
0.220 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Surface Treatment
CHROMATE
Material
ALUMINUM ALLOY
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Other items in FSC 5999 — Miscellaneous Electrical and Electronic Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5999-00-001-1345
5999-00-001-1345 · Item name not on file
5999-00-001-1346
5999-00-001-1346 · Item name not on file
5999-00-001-1348
5999-00-001-1348 · Item name not on file
5999-00-001-1349
5999-00-001-1349 · Item name not on file
5999-00-001-1355
5999-00-001-1355 · Item name not on file
5999-00-001-1623
5999-00-001-1623 · Item name not on file
5999-00-001-2537
5999-00-001-2537 · Item name not on file
5999-00-001-2539
5999-00-001-2539 · Item name not on file
Frequently Asked Questions
What is NSN 5999-01-157-4707?
NSN 5999-01-157-4707 is a Heat Sink,electrical-Electronic, manufactured by Raytheon Company Div Rmd Strategic, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
What part numbers are listed for NSN 5999-01-157-4707?
NSN 5999-01-157-4707 has 2 manufacturer part numbers on file: 3-841-006 (Tran-Tec Corp), 721435-1 (Raytheon Company Div Rmd Strategic).
What are the specifications of 721435-1?
Key specifications for 721435-1: Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY; Overall Height: 0.750 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE; Unthreaded Mounting Hole Diameter: 0.220 INCHES NOMINAL SINGLE MOUNTING FACILITY IN. 5 specifications are documented in the U.S. Government catalog.
Is NSN 5999-01-157-4707 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.